Casa Santa, Italy offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Casa Santa, Sicily, Italy, is known for its proximity to the historic city of Trapani and the ancient hilltop town of Erice. The best time to travel to Casa Santa, Italy, is from May to September, with average air temperatures ranging from 70°F to 85°F and water temperatures around 72°F to 78°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!